The lower reaches and estuary of the Kamchia river, with remnant riverine forests, small freshwater marshes of Phragmites and Typha along the riverbank, arable land (the former Staro-Oryachovo marshes), a beach with sand-dunes, and a sea bay. The forests are dominated by Fraxinus, Ulmus, Quercus, Acer and Alnus, with scrub of Crataegus, Cornus, Paliurus and Ligustrum, and lianas of Clematis, Smilax and Periploca.
The site is important for wintering Cygnus cygnus and is the most important breeding area in Bulgaria for Dendrocopos medius and Ficedula semitorquata. The locality is also a major migratory bottleneck site, where 60,000 or more Ciconia ciconia pass overhead each autumn.
BirdLife International (2022) Important Bird Areas factsheet: Kamchia Complex. Downloaded from http://www.birdlife.org on 04/07/2022.